Frost, Texas. $20 1929 Ty. 1. Fr. 1802-1. The First NB. Charter #6968. PMG Choice Fine 15.,A very important offering, as this newly discovered $20 is just the second small size to be reported, and the first offering since 1992. A mere 105 $20 sheets were issued making any known notes a virtual miracle of survival. PMG Comments "Minor Rust" on this fairly well circulated note. A great opportunity to obtain an incredibly rare Texas charter.